Gas cut-off.



A. E. WESTBURG.

GAS GU'I OFF.

APPLICATION FILED JUNE 8, 1908.

921, 191 Patented May 11, 1909.

THE mmms PETERS cc., wAsmmn'uN. m c.

UNITED STATES PATENT OFFICE.

ARTHUR E. WESTBURG, OF JAMESTOWN, NEW YORK.

GAS CUT-OFF.

To all whom it may concern:

Be it known that I, ARTHUR E. VEST- BI'RG, a citizen of the UnitedStates, residing Jamestown, in the county of Chautauqua and State of NewYork, have invented certain new and useful Improvements in Gas Cut-Offs;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in what may be termed gas safetyappliances.

It is designed more especially for use in houses or buildings suppliedwith natural or manufactured gas and to provide for automaticallyshutting off the supply or inflow of to a tank located therein at asuitable point as in the cellar or other place for preventing thedelivery of the gas to the burner pipes of the house, in event of aleakage or break in the pipe or main leading from the source of supplyas at the gas plant or at the natural gas wells, until such defect orleakage may be remedied.

It has for its further object to carry out these ends in a simple,effective and reliable manner.

lVith these and other objects in view, the invention consists of certainnovel features of construction, combination and arrange ment of parts,as will be more fully described and particularly pointed out in theappended claims.

In the accompanying drawings illustrating the preferred embodiment of'my invention, Figure 1 represents a sectional elevation thereof, withthe valve in closed position; and Fig. 2 is a detail showing the valveopen.

In the embodiment of the invention, illustrated, a gastight tank orouter receptacle 1 is located at any desired point with a bell or loweropen ended receptacle or tank 2- arranged within the tank 1 and having aguiding stem 3 extending through the dome or apex of said tank 1 with asuitable packing arranged around it within a tubular upward extension 4-of the tank 1. This extension 4 has a bushing therein, preferably ofaluminum to prevent the possible sticking or adherence of the packingthereto, as might otherwise occur from long contact, since an emergencyor leak may not arise until after the lapse of a long period ofSpecification of Letters Patent.

Application fiIed June 8, 1908.

Patented May 11, 1909.

Serial No. 437,453.

time, if ever. A gas delivery pipe 2* is fixed in the bottom of the tank1, with its upper end extending a short distance above the level of thefluid seal for said bell, hereinafter referred to.

An inlet valve is arranged in a suitable seat 6, provided upon the upperend of the inlet pipe 7 of the tank 1, said valve having its stem 8suitably guided in an arm 9 of a bracket 10 secured to the upper end ofthe inlet pipe 7. A lever 11 has one end pivoted. to the bracket 10 andis connected intermediately of its ends with the valve stem 8 and hasits opposite end connected to a spring 12 suitably secured to a fixedpoint, preferably at the bottom of the tank 1, the tension of saidspring being designed to force the free end of the lever 11 down andseat and hold the valve 5 gastight on its seat 6.

A trip lever 13 is suitably pivoted upon an arm or bracket 14: securedin common with the bracket 10 to the upper end of the pipe 7, said triplever being arranged transversely ithin the bell 2 for engagement by thelatter when in its lowermost position, the purpose of which willpresently be seen. A bar or lever 15 is pivoted at one end to 5 thebracket 1% with its free end provided with a nose 15 to be engaged by ahook 13 on one end of the trip lever 13, and is pivotally connected by alink 16 with the free end of the lever 11.

A lever 17 preferably in the form of a slightly obtuse-angled member, iscentrally pivoted to an arm 18 of the bracket carried by the inlet pipe7. One end of said lever is arranged to bear against the lower face ofthe spring connected. end of the lever 11 and the opposite end of saidlever is connected to one end ofa wire or line 19, which is connected toa stem or rod 20. This rod 20 is passed through and packed at the bottomof the tank, preferably as shown to render the same fluid tight and isadapted to be manually actuated. Upon said rod 20 is arranged a pushspring 21 the tension or pressure of which is delivered thereon tonormally hold the lever 17 out of engagement with the lever 11, when thelatter is arranged to hold the valve 5 in elevated position relative toits seat 6.

A suitable sealing liquid 22, as crude oil or any other like substance,which will not freeze or explode is placed in the tank 1 for thesubmergence of the open end of the bell 2 for formlng a liquid or fluidtight packing or seal for said bell.

Normally, the valve 5 is held in elevated or open position by theengagement of the nose 13 of the lever 13 with the hooked end of the bar15 which holds the free end of the lever 11 up against the tension ofthe spring 12. Should leakage take place in the supply or service pipe,pressure under the bell 2 will be reduced and cause said bell to descendand engage the end 13 of the trip 13 and accordingly raise the end 13 ofsaid trip disengaging it from the member 15, thereby allowing the valve5 to be forced to its seat by the spring 12, and cutting off the supplyof gasto the tank or hell, until the leakage shall be remedied. When itis desired to open the valve 5, a pull is exerted on the rod 20 againstthe tension of the spring 21 which causes the free end of the lever 17to move upwardly and force the lever 11 up until the hooked end of thebar 15 engages with the nose 13 of lever 13 whereby the valve is openedand locked in open position.

It will be observed that from the foregoing arrangement of parts aneflicient and simple contrivance is provided for preventing the waste ofgas in case of leakage, and that the contrivance is simple inconstruction, inexpensive of manufacture and reliable and automatic inaction, while it may be readily adjusted for action.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill. be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claims.

Having thus described and ascertained the nature of my invention, what Iclaim as new and desire to secure by LettersPatent is 1. A device of thecharacter described, comprising a tank having a bell operable therein avalve, a supply pipe opening under said bell and having a seat in itsupper end for said valve, a spring pressed lever for forcibly engagingsaid valve, a spring held member operable to engage said lever and forceit in elevated position, means for looking said lever in elevatedposition, and means for releasing said lever operable by the descent ofthe bell.

2. A device of the character described, comprising a tank having asupply pipe, a bell arranged within said tank, a valve seated in theupper end of the supply pipe, a lever connected with the stem of saidvalve, an arm connected with said lever, a trip normally engaged withsaid arm to hold the valve in open position and operable to release saidarm on the descent of said bell and means connected with said lever forclosing the valve on the release of said arm.

3. A device of the character described, comprising a tank, a bellarranged in said tank, a supply pipe, a valve seated in the delivery endof said supply pipe, an operating lever connected with said valve, anarm linked. to said lever, a pull spring connected with the free end ofsaid lever, a setting lever for engagement with the lower face of saidoperating lever, means for holding said setting lever out of engagementwith the operating lever, and a trip adapted to engage said arm saidbell being adapted in its downward movement for engagement with saidtrip to release said arm.

l. A device of the character described, comprising a tank, a bellarranged within said tank, a supply pipe, a valve arranged in thedelivery end of said supply pipe, an operating lever having the stem ofsaid va ve connected therewith, a pivoted arm having link connectionwith said operating lever, a trip having engagement with said arm, aspring for the retention of said operating lever under pressure, asetting lever adapted for engagement with said operating lever, meansfor actuating said setting lever, a spring arranged upon said s ettinglever, actuating means for the retention of said lever under pressure,said bell being adapted to engage said trip in its downward movement.

In testimony my hand in presence witnesses.

Witnesses Jason 0. Runner, JOHN E. WHEELER.

whereof I have hereunto set of two subscribing

